Company Filing History:
5 out of 1,588 
1 out of 1,252 
1 out of 2,861 
Years Active: 1983-2003
Title: Masahiko Naoe: Innovator in Sputtering Technology
Introduction
Masahiko Naoe is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of sputtering technology, holding a total of 9 patents. His innovative work has advanced the capabilities of various applications in materials science.
Latest Patents
One of Naoe's latest inventions is the Mirrortron sputtering apparatus. This apparatus is designed for sputtering on a substrate and includes a vacuum chamber that houses a pair of targets. These targets are spaced apart, with their inner surfaces facing each other and outer surfaces positioned opposite. Magnets are strategically placed closer to the outer surfaces of the targets to create a magnetic field between them. This magnetic field features a distribution that has a high magnetic flux density in the peripheral region and a low magnetic flux density in the center region. The substrate is positioned alongside the space between the targets, facing the magnetic field.
Another notable patent is the magnetic disk substrate. This substrate has a specific composition where the sum of (V/13)+(Fe/20)+(Cr/17)+(Ni/31)+(Co/23) does not exceed 0.010%. Additionally, the components Rem+Si+B+W are limited to no more than 0.015%, while 0+2N+0.75C must be between 0.03% and 0.5%. The remainder of the substrate primarily consists of titanium, with all percentages calculated by weight.
Career Highlights
Throughout his career, Masahiko Naoe has worked with notable companies such as Teijin Limited and Konishiroku Photo Industry Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the field.
Collaborations
Naoe has collaborated with esteemed colleagues, including Sadao Kadokura and Takashi Tomie. These partnerships have fostered innovation and have been instrumental in the development of his patents.
Conclusion
Masahiko Naoe's contributions to sputtering technology and his impressive portfolio of patents highlight his role as a leading inventor in his field. His work continues to influence advancements in materials science and engineering.